f2fs: let FI_OPU_WRITE override FADVISE_COLD_BIT

Cold files may be fragmented due to SSR, defragment is needed as
sequential reads are dominant scenarios of these files. FI_OPU_WRITE
should override FADVISE_COLD_BIT to avoid defragment fails.
Signed-off-by: Weichao Guo <guoweichao@oppo.com>
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

fs/f2fs/data.c

@@ -2543,7 +2543,7 @@ bool f2fs_should_update_inplace(struct inode *inode, struct f2fs_io_info *fio)
 		return true;
 
 	/* if this is cold file, we should overwrite to avoid fragmentation */
-	if (file_is_cold(inode))
+	if (file_is_cold(inode) && !is_inode_flag_set(inode, FI_OPU_WRITE))
 		return true;
 
 	return check_inplace_update_policy(inode, fio);